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  <title>Creates new file collections</title>

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</div><hr /><div id="mongogridfs.construct" class="refentry">
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  <h1 class="refname">MongoGridFS::__construct</h1>
  <p class="verinfo">(PECL mongo &gt;=0.9.0)</p><p class="refpurpose"><span class="refname">MongoGridFS::__construct</span> &mdash; <span class="dc-title">Creates new file collections</span></p>

 </div>
 <div class="refsect1 description" id="refsect1-mongogridfs.construct-description">
  <h3 class="title">说明</h3>
  <div class="methodsynopsis dc-description">
   <span class="modifier">public</span> <span class="methodname"><strong>MongoGridFS::__construct</strong></span>
    ( <span class="methodparam"><span class="type"><a href="class.mongodb.html" class="type MongoDB">MongoDB</a></span> <code class="parameter">$db</code></span>
   [, <span class="methodparam"><span class="type">string</span> <code class="parameter">$prefix</code><span class="initializer"> = &quot;fs&quot;</span></span>
   [, <span class="methodparam"><span class="type"><a href="language.pseudo-types.html#language.types.mixed" class="type mixed">mixed</a></span> <code class="parameter">$chunks</code><span class="initializer"> = &quot;fs&quot;</span></span>
  ]] )</div>


  <p class="para rdfs-comment">
   Files as stored across two collections, the first containing file meta information, the
   second containing chunks of the actual file. By default, fs.files and fs.chunks are the
   collection names used.
  </p>
  <p class="para">
   Use one argument to specify a prefix other than &quot;fs&quot;:
<div class="descriptioncode"><pre class="descriptioncode">$fs = new MongoGridFS($db, &quot;myfiles&quot;);</pre>
</div>
   uses myfiles.files and myfiles.chunks collections.
  </p>
 </div>


 <div class="refsect1 parameters" id="refsect1-mongogridfs.construct-parameters">
  <h3 class="title">参数</h3>  
  <p class="para">
   <dl>

    
     <dt>

      <em><code class="parameter">db</code></em>
     </dt>

     <dd>

      <p class="para">
       Database.
      </p>
     </dd>

       
    
     <dt>

      <em><code class="parameter">files</code></em>
     </dt>

     <dd>

      <p class="para">
       Optional collection name prefix.
      </p>
     </dd>

       
   </dl>

  </p>
 </div>

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